OY VEY! in DAUGHTER IN LAW

It's been crazy here!!!!!!!!!!!!!
My daughter has "cancer" and my son is heading for a divorce!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
I just can't believe the whole thing.
I AM A WRECK!
I don't know what to do. Do I go to TO? My daughter says she'll tell me when I should come.
My son does not communicate at all. If it wasn't for his wife I wouldn't know anything.
Does your "man" communicate??????????????
If I had to do it over again you can be sure I would teach my sons to talk!!!!!!!!! communicate and more.
My son told his wife that she "poisons his life." I think it's time to leave her. She is just not his type and he isn't hers.
I feel so sad and miserable about all of this.